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你好,请使用System.IO.Directory.EnumerateFiles()方法
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Dim XLS文件列表 As IEnumerable(Of string)
Dim XLSX文件列表 As IEnumerable(Of string)
Dim path As String = "D:\File\"
XLS文件列表 = Directory.EnumerateFiles(path, "*.xls", SearchOption.TopDirectoryOnly)
XLSX文件列表 = Directory.EnumerateFiles(path, "*.xlsx", SearchOption.TopDirectoryOnly)
写入:Dim sr As New IO.StreamWriter(Application.StartupPath "/写入的文本.txt")
sr.WriteLine("写入的内容") sr.Close()读取:If (File.Exists(Application.StartupPath "/msg.txt")) Then
Dim fm As New IO.FileStream(Application.StartupPath "/读取的文本.txt", FileMode.Open)
Dim sr As IO.StreamReader = New IO.StreamReader(fm)
Do While sr.Peek() = 0
TextBox1.Text = sr.ReadLine() (读取文本到文本框)
Loop end if
'
' 需要添加以下命名空间:
' Imports System.IO
' Imports System.Security.AccessControl
' */
Dim sPath As String = Server.MapPath(文件夹名称字符串)
Directory.CreateDirectory(sPath)
addpathPower(sPath, "ASPNET", "FullControl")
'////////////////////////////////////////////////
Public Sub addpathPower(ByVal pathname As String, ByVal username As String, ByVal power As String)
Dim dirinfo As DirectoryInfo = New DirectoryInfo(pathname)
If (dirinfo.Attributes FileAttributes.ReadOnly) 0 Then
dirinfo.Attributes = FileAttributes.Normal
End If
'取得访问控制列表
Dim dirsecurity As DirectorySecurity = dirinfo.GetAccessControl()
Select Case power
Case "FullControl"
dirsecurity.AddAccessRule(New FileSystemAccessRule(uername,FileSystemRights.FullControl,InheritanceFlags.ContainerInherit,PropagationFlags.InheritOnly,AccessControlType.Allow))
Exit Sub
Case "ReadOnly"
dirsecurity.AddAccessRule(New FileSystemAccessRule(username,FileSystemRights.Read,AccessControlType.Allow))
Exit Sub
Case "Write"
dirsecurity.AddAccessRule(New FileSystemAccessRule(username,FileSystemRights.Write,AccessControlType.Allow))
Exit Sub
Case "Modify"
dirsecurity.AddAccessRule(New FileSystemAccessRule(username,FileSystemRights.Modify,AccessControlType.Allow))
Exit Sub
End Select
dirinfo.SetAccessControl(dirsecurity)
End Sub
选择文件夹 在工具箱 - 对话框 里选择 FolderBrowserDialog 添加 到设计器中
然后 代码写在 按钮事件里
FolderBrowserDialog1.ShowDialog()
textbox1.text =FolderBrowserDialog1.SelectedPath
选择文件 在工具箱 - 对话框 里选择 OpenFileDialog
把 OpenFileDialog1.ShowDialog()
TextBox1.Text = OpenFileDialog1.FileName
写到按钮事件下
如图
点击按钮会弹出 通用对话框 选择好路径后 确定 ,编辑框里就会显示选择的路径